Q. Which of the following radian measures is equal to 45∘ ?Choose 1 answer:(A) 2π radiansB 3π radians(C) 4π radians(D) 6π radians
Convert to Radians: To convert degrees to radians, we use the conversion factor that 180 degrees is equal to π radians. Therefore, to find the radian measure equivalent to 45 degrees, we set up the proportion: (45 degrees)×(π radians/180 degrees).
Calculate Value: Now we calculate the value: (45/180)×π=(1/4)×π=π/4 radians.
Check Calculation: We check our calculation to ensure that we have not made any errors in the conversion process. Since 45 is one-fourth of 180, it is correct that 45 degrees is equal to π/4 radians.
More problems from Convert between radians and degrees